Home / 2,178,789.80-3,268,184.70-2,080,812.20

Finding the Fourth Proportional to 2,178,789.80, 3,268,184.70 and 2,080,812.20

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Solution

The fourth proportional to 2,178,789.80, 3,268,184.70 and 2,080,812.20 is: 3,121,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,789.80 : 3,268,184.70 = 2,080,812.20 : x
  2. Step 2: Convert to fraction form
    2,178,789.80/3,268,184.70 = 2,080,812.20/x
  3. Step 3: Cross multiply
    2,178,789.80x = 3,268,184.70 × 2,080,812.20
  4. Step 4: Simplify right side
    2,178,789.80x = 6,800,478,595,613.34
  5. Step 5: Solve for x
    x = 6,800,478,595,613.34/2,178,789.80
  6. Step 6: Final answer
    x = 3,121,218.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.